ACANTHOPTERYGII. 139 



nerally much compressed, the intestines long, and the cseca 

 numerous. They were comprised by Linnaeus in the genus 



Ch^todon, Lin. 



So named from their teeth, which in length and tenuity resemble 

 hairs, collected in several close rows like a brush. Their mouth is 

 small; their dorsal and anal fins are so completely covered with 

 scales similar to those on the back, that it is extremely difficult to 

 ascertain where they commence. These fishes are very abundant in 

 the seas of hot climates, and are adorned with the most beautiful 

 colours, circumstances which have caused many to be figured, and 

 rendered them common in our cabinets. Their intestines are long 

 and ample, and their cseca long, slender and numerous; their nata- 

 tory bladder is large and very strong. They frequent rocky shores, 

 and are eaten. 



Ch^todon, properly so called. 



The body more or less elliptical; the spinous and soft rays conti- 

 nuing in a uniform curve; the snout projecting more or less, and 

 sometimes a very small indentation in the preoperculum. They have 

 a mutual resemblance, even in the distribution of colours, most of 

 them, for instance, being marked with a vertical black band, in 

 which is placed the eye. 



In some there are several other vertical bands parallel to the 

 former. (l) In others they are oblique or longitudinal. (2) 



The flanks of some are sprinkled with brown spots. (3) 



Others again are merely marked with lines of reflections in va- 

 rious directions; here it is merely the ocular band:(4) and there, in 

 addition, are ribands on the vertical fins.(5) 



One or two ocellated spots are observed in some. (6) 



(1) Chxt. striatus, L.,B1. 205, f. 1; — Ch. odofasciatus, Gm., Bl.,2155 — H. collare, 

 Bl., 216. 



(2) Chwt. Meyeri, Bl., Schn., hnproperly called Holocanthc jaime et noir by 

 Lacep., IV, xiii, 2. 



(3) Chxt. miliaris, Cuv., Zool. Voy. Freycin., pi. 62, f. 5. 



(4) Chzt. Kleinii, BL, 218, 2;—Ch. Sebae, Cuv., Seb., Ill, xxvi, 36. 



(5) Chset. vitfatus, Bl., Schn., Seb., Ill, xxix, 18;— Ch. vagabundus, BL, 204; — 

 Ck. decussaius, Cuv., Fuss., 83; and Klein, Mis., IV, ix, 2; — Ch- blfascialis, Cuv., 

 Voy. de Freycin., pi. 62, f. 5; — Ch. strigangulus, Gm.; — Ch. baroncssa, Cuv., Re- 

 nard, I, xliii, 218; — Ch. frontalis, Cuv., or Pomacentre croissant, Laeep.; — Ch. fas- 

 ciatus, Forsk., or Ch.flavus,B\., Schn., No. 37". 



(6) Ch. nasogallicus, Cuv., Ren., I, v, 37; and Will'., App., V, 4;—Ch. capis- 

 iraius, L., Seb., Ill, xxv, 16, Mns. Ad. Fred., XXXTIT, 4; Klein., Misc., IV, xi. 



